No connection Karaf Console

  • Platform information:
    • Hardware: Raspi 4
    • OS: bullseye
    • Java Runtime Environment: which java platform is used and what version
    • openHAB version: 3.4.2

Hey guys,
after a while I wanted to log in to my console. With
ssh -p 8101 openhab@localhost
I get the following error message:
ssh: connect to host localhost port 8101: Connection refused
The console was already working, but I don’t know what I did to make it stop working now.
Does anyone have any ideas for me?